Update app_qwen_tts_fast.py

app_qwen_tts_fast.py

@@ -116,6 +116,8 @@ def cached_answer(question: str) -> str:
 # =========================================================
 # TTS (CACHED)
 # =========================================================
+import base64
+
 @lru_cache(maxsize=128)
 def cached_tts(text: str) -> str:
     payload = {
@@ -130,14 +132,21 @@ def cached_tts(text: str) -> str:
     r = SESSION.post(TTS_API_URL, json=payload)
     r.raise_for_status()
 
-    audio_bytes = r.content  # RAW WAV BYTES
-    audio_path = f"/tmp/{abs(hash(text))}.wav"
+    data = r.json()
+
+    if "audio" not in data:
+        raise RuntimeError("TTS API returned no audio field")
 
+    audio_b64 = data["audio"]
+    audio_bytes = base64.b64decode(audio_b64)
+
+    audio_path = f"/tmp/tts_{abs(hash(text))}.wav"
     with open(audio_path, "wb") as f:
         f.write(audio_bytes)
 
     return audio_path
 
+
 # =========================================================
 # PIPELINE
 # =========================================================